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Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/1877794')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/1877794 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/1877794 b/results/classifier/deepseek-2/reasoning/mistranslation/1877794 new file mode 100644 index 000000000..1acd5ef14 --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/1877794 @@ -0,0 +1,15 @@ +<think> +Okay, let's try to figure out how to classify this bug report. The user is experiencing a crash when running glxgears on ppc64le translated to x86_64 using QEMU. The issue arises in the GLXSwapBuffers() function with a SIGILL due to an invalid instruction generated by QEMU. + +From the description, it seems that constant folding for subtraction operations is causing incorrect shift instructions. Specifically, when the constant is -1, it results in a bad shift instruction (like RLDICL) which doesn't handle c=-1 correctly on ppc64le. This leads to an invalid instruction being generated, causing the crash. + +The user tried disabling constant folding for arithmetic operations and saw that the issue went away, but re-enabling it for subtraction brought back the problem. So, the bug is related to how constants are folded during the optimization phase. + +Looking at the possible categories, I need to determine which one fits best. The issue is with QEMU generating incorrect machine code (specifically a bad shift instruction) due to an error in the constant folding process. Constant folding typically happens during the intermediate representation (IR) optimization stage before generating the target machine code. This is part of the translation from the source architecture's instructions to the target's, which would fall under 'mistranslation'. + +The problem isn't related to assembly lowering (which would be 'assembly') because that's about converting high-level IR to low-level assembly, not the optimization step. It also doesn't fit into categories like device, graphic, network, etc., since it's a core translation issue. + +So, the category should be 'mistranslation' as it's an error in how instructions are translated or optimized during the code generation process. +</think> + +mistranslation \ No newline at end of file |